Patent US3853130A successfully refreshed from Google Patents.
US3853130A
Expired / Lapsed
US
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Sterile handling catheter assemblies
Assignee: Individual
•
Filing: 1973-12-04
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Granted: 1974-12-10
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Expires: 1993-12-04
Abstract
Abstract A sterile handling catheter assembly comprises a catheter enveloped by a protective sheath which has a longitudinal slit extending the entire length thereof and a pair of ribs extending radially from the sheath which run the full length of the sheath adjacent and parallel to the slit creating a barrier which preserves sterility of the edges of the slit during manipulation of the assembly for installation of the catheter in a patient.
Inventors
- 👤 D Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/013; A61M25/0111; A61M25/09; A61M2025/09116; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
176 words
A sterile handling catheter assembly comprising: a catheter having a distal end portion, a proximal end portion and a central body portion integrally connecting the distal end portion to the proximal end portion, a protective sheath formed of flexible plastic material that, throughout the length thereof, substantially completely and closely encircles said catheter, the length of said sheath being sufficient that at least the proximal end and central body portions of said catheter are so encircled, said sheath having a longitudinal slit extending substantially the length thereof, a first rib running substantially the length of said sheath adjacent one side of said slit extending radially outwardly from said sheath, a second rib running substantially the length of said sheath adjacent the other side of said slit extending radially outwardly from said sheath substantially the same distance as said first rib, said ribs creating a pair of parallel barrier members above said slit to preserve the sterility of the edges of the slit during manipulation of said assembly in the installation of said catheter in a patient.
Claim 2
Dependent Claim
176 words
A sterile handling catheter assembly comprising: a catheter having a distal end portion, a proximal end portion and a central body portion integrally connecting the distal end portion to the proximal end portion, a protective sheath formed of flexible plastic material that, throughout the length thereof, substantially completely and closely encircles said catheter, the length of said sheath being sufficient that at least the proximal end and central body portions of said catheter are so encircled, said sheath having a longitudinal slit extending substantially the length thereof, a first rib running substantially the length of said sheath adjacent one side of said slit extending radially outwardly from said sheath, a second rib running substantially the length of said sheath adjacent the other side of said slit extending radially outwardly from said sheath substantially the same distance as said first rib, said ribs creating a pair of parallel barrier members above said slit to preserve the sterility of the edges of the slit during manipulation of said assembly in the installation of said catheter in a patient.
Claim 3
Dependent Claim
13 words
The catheter assembly of claim 1 wherein said catheter is a suction catheter.
Claim 4
Dependent Claim
21 words
The catheter assembly of claim 1 wherein moveable slide means encircles a portion of the proximal end of said protective sheath.
Claim 5
Dependent Claim
17 words
The catheter assembly of claim 1 wherein said catheter is extruded of flexible water-proof nonfibrous thermoplastic material.
Claim 6
Dependent Claim
28 words
The catheter assembly of claim 4 wherein said protective sheath is extruded of flexible water-proof non-fibrous thermoplastic material with said ribs integral with the remainder of the sheath.
Claim 7
Dependent Claim
23 words
The catheter assembly of claim 1 wherein said catheter is a suction catheter having vacuum control means fixed to the proximal end thereof.
Claim 8
Dependent Claim
44 words
The catheter assembly of claim 6 wherein said sheath is retained against movement longitudinally relative to said catheter by frictional engagement between the inner surface of the proximal end of the sheath and a tubular member connecting the catheter to said vacuum control means.
Claim 9
Dependent Claim
18 words
The catheter assembly of claim 1 wherein the edges of said slit in said sheath abut one another.
Claim 10
Dependent Claim
24 words
The catheter assembly of claim 1 wherein one of the edges of said slit in said sheath overlaps the other edge of said slit.
Claim 11
Dependent Claim
43 words
The catheter assembly of claim 1 wherein the height of said ribs above the outside wall of the catheter is between about 1 to 3 mm. and the distance between the central axes of the ribs is between about 3 to 5 mm.
Claim 12
Dependent Claim
14 words
The catheter assembly of claim 1 wherein said catheter has a frosted outer surface.
Claim 13
Dependent Claim
19 words
The catheter assembly of claim 1 wherein said catheter and said sheath are both extruded plasticized polyvinyl chloride material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |